Screwdriver head



FIG. 1 is a front perspective view of a first embodiment of screwdriver head showing my design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top plan view thereof, the bottom view being a mirror image;

FIG. 5 is a right side view thereof; and,

FIG. 6 is a left side view thereof. 

The ornamental design for a screwdriver head, as shown and described. 